Internet Connection Accidentally Blocking Certain Sites
Nov 26, 2012
I am currently at university, using a Local Area Connection. I am aware that the university blocks torrenting which I am totally fine with though when I try to carry out a process such as posting a large entry on Livejournal.com or Dreamwidth.org, it tries to load for a couple seconds and then fails. When in Google Chrome, it says that it's "uploaded 100%" but then I receive "Error 7 (net::ERR_TIMED_OUT): The operation timed out.". When using Internet Explorer, it either doesn't load at all or I get the standard "Internet Explorer cannot display the webpage". When I try to carry out a different process on dreamwidth and livejournal (editing my layout), Chrome tells me "Error 101 (net::ERR_CONNECTION_RESET): The connection was reset." These issues always happen no matter when I try them.
I using 881 cisco router and want to block secure sites. I am using classmap to block sites and accesslist to block secure sites. Now the issue is if i need to block youtube, and if doing tracert the IP of google and youtube is in the same subnet.
If i am blocking that IP, google is also blocking with youtube which i does not want. Need blocking youtube secure site only.I am also attaching tracert for both the sites.
So I can't seem to access ANY site related to my university (www.concordia.ca) anymore from my home network. I've tried to visit URL or any of its' sister sites from my desktop, my laptop, my iTouch, even my ps3, I've also tried cross-browsing to no avail. I've checked the router page, apparently my Hardware Version is B1 and my Firmware Version is 2.00NA. Access Control is unchecked and there are no sites at all listed under Website Filter. I've also tried resetting using the reset-hole and also by pulling off the power chord. Also did a factory-reset from the router page, the problem persists despite all of that.Every other site works just fine, it's just my university site that refuses to load up. I've browsed the last 7-8 pages of this forum, this doesn't seem to be a common problem based on that little sample. So what gives exactly? I used to be able to visit those sites just fine prior to few days ago.
I have a LAN with several linux boxes (Fedora 17, both 32 and 64 bits), as well a a WInXP box. All of these are connected to the same switch, which is connected to the inside port of my PIX 515.
For a few sites (mozilla.org happens to be one of them), for http access, the tcp connection is established, but the "GET" request - or anything else for that matter - will not go through the PIX (from inside to wan). I have verified this by first, using wireshark to watch the packets being sent out from the client box, then by using the trace function in the PIX to see that the packets ARE arriving at the inside interface, but ARE NOT sent out of the wan interface.
This is for the linux boxes ONLY. When I do the same thing with my WinXP box, all works: in the PIX trace, I see the packets arrive at the inside interface, and leave the wan interace. And access to these sites are okay.
(What's a bit weird, although somewhat expected, when I connect my android phone to my LAN via WiFi, it too is unable to reach those sites - but then again, android is linux, right?)
In addition to the tracing, I have narrowed this problem down by connecting a linux box directly to my DSL router, then replacing the PIX with a simple router/gateway. Both of those solutions work.
I have been using this PIX for about 10 years now, with the same configuration (except IP addresses). Only in the last several months has this problem started to show up.
I got this pix from a dead company at a really great price (free), so I'd like to keep it, and not have to spend money on something else. I don't have any support license, and have not been able to get any software upgrades. Here is its version info:
taz(config)# sho ver
Cisco PIX Firewall Version 6.2(2) Cisco PIX Device Manager Version 2.0(2)
I am on a 200GB/month 100mbit cable plan with Telstra, and we have a number of sites/servers which we can download from which do not count towards our monthly download limit. Normally there would be 3-4GB of usage per day which was 'unmetered' but since upgrading to the E4200 router, everything that should be 'unmetered' is not being recognised and is being counted towards my monthly download limit - in other words, all traffic through the router is counted as chargable downloads.
Im not sure how it all works, but the E4200 router is definitely blocking something out... if i plug directly into the modem or use my previous router (WRT160N) everything works perfectly.
I'm finished with formatting my computer to install a clean Windows 7 Ultimate. Then, I connect my PC to the modem I have, to browse the Internet of course. Well, everything runs fine on the first start, let's say I have installed Google Chrome, Microsoft Office, and some other software I still not installed it. And when I restart it and tried to run Google Chrome for example, it said "Google Chrome has stopped working", it's happened to almost every software in my PC, let's say I tried to install VirtualDJ, then the Installer is corrupted, so was the Google Chrome installer and Microsoft Office Installer. Before they are all corrupted, there was a suspicious thing named 'winblmguf.exe' trying to access the Internet through my firewall.
My bsnl wimax connection has stopped working on my laptop...IT WORKS ON MY FREINDS' LAPTOP. On my laptop (windows 7), in the taskbar, it shows connected and everything seems fine but i cant access any sites or download anything? Does this have to do with a bluetooth device i installed a few days back or some other issue.
So i just brought my computer home from my dorm where it was working fine. as it is in my rom now I bought the XAVB1004 from netgear to connect it from my room t the router in the computer room. That device works great as I have tried my laptop with it and it works. I can connect to the internet as i have set u my router on my computer( the one that i took from my dorm) but only google loads, i can also search in google, and youtube loads where i can oddly watch videos no problem. I have tried reinstalling my ethernet drivers, winsock reset, checking/unchecking just about every setting in internet options and so on. No browser seems to work and I am out of ideas. I turned firewall off as well to no prevail. I have no clue where to look next as 3 days ago my computer worked fine and all I did now was move it.
MY ISP installed one router in my lab.for internet connectivity they mail me steps :connect your Laptop directly to gi0/3 port to check internet connectivity with public ip 1.1.1.x and Gateway 188.8.131.52 with subnet mask 255.255.255.240 after connection I surprised because I am able to access only google sites like gmail,google search etc. but I am able to ping/traceroute all sites.from browser I am able to access only google sites only.In Router no firewall no such access list.
I suddenly could not go on my web-site anymore(this situation happend a lot already),I went to the server to see whether Apache was running and serving the web-site,tested it locally and it worked,then i checked if my external IP changed, it remained the same.And I know, if i reboot the router 1 or 2 times it will get back to normal, but probably stop working later again. I enabled inbound logging on my router and all of a sudden it shows me this picture of a blocked connection to port 80(even though the ports are forwarded).
When I try to go to certain websites on my home PC they take up to several minutes to load. It does not matter what browser I use. When I visit the same sites from work (or any other place, literally) the sites load without delay of any kind.
Ok starting about an hour ago I seem to be having a problem accessing youtube as well as Facebook & now Microsoft?I have done some searching around and tried a few of the suggestions I found including; trying another browser (happens using both Mozilla and IE), clearing internet cache, unplugging my modem for a minute then plugging it back in, etc, and so far none of these have worked. I did get youtube to work once since then long enough to upload a 10 sec video but once it was uploaded and I tried editing the video details I once again found myself taken to the page that says The connection was reset.
I have been working with my ASA 5505 VPN Concentrator to maintain a connection with one of my remote sites. I have several tunnels that work fine and dont have any issues at all, but one tunnel with outside IP ending in 146 and inside LAN 192.168.3.0 goes down every 24 hours. Attached is the config from the concentrator. I changed around the Security Association Lifetime Settings and the tunnel would drop after that amount of time expired. If I set it to 24 hours, the tunnel would drop every 24 hours. If I set it to 8 hours it would go down every 8 hours.
I have swapped the router a few times, double and triple checked my key settings, disabled keep alives on both ends, and this problem just started happening a few weeks ago after working fine for years. I also get the following e-mail error every time it goes down:
<161>Jul 10 2011 16:19:47: %ASA-1-713900: Group = xxx.xxx.xxx.146, IP = xxx.xxx.xxx.146, construct_ipsec_delete(): No SPI to identify Phase 2 SA!
Until yesterday my various equipment was networking to each other and the internet without a problem. After i reset my d-link DSL-2640B router (would this initiate an update?) my x-box would not connect to the internet, There is no problem connecting to the router and the home network. Everything is talking to each other and everything else is connected to the internet including the TV. The router must just be blocking the x-box and only from yesterday. I checked ports that are talked about and i think i set up port triggering, but then noticed the firewall is disabled anyway.
I have a Linksys E2500 Firmware Version: 1.0.03 and am using the "IPSec Passthrough" for work. On a typical day I'll sign in to my work's VPN, do my work, sign off in the evening, and read my personal email with a direct connection to the internet.
Then on the next morning, I am unable to connect to work until I go to http://192.168.1.1/index.asp and click "reboot." And as soon as the modem finishes rebooting, my laptop can connect to work. I've tried this several days in a row now, and indeed all I need to do to get the VPN passthrough working is rebooting the modem.
Nothing under "Applications & Gaming" is set. I've seen some posts about having a trigger on UDP port 500, but I'm not quite sure how to translate it for the E2500. Plus I'd rather the router "just work" day after day for VPN and everything else, like my old router did! Is there some other setting to try or clearer directions for a bulletproof IPSec passthrough on that unit?
I am having an issue with my computer that started today. Here are the basic facts:1. Nearly every internet site I try to visit does not load. Facebook and Wikipedia work, as well as ALL Google sites (including YouTube, Gmail, Google News, etc.). Nothing else I have tried to load is loading properly. 2. It could be a coincidence, but these three sites were also my Firefox bookmarks. However, I have reset the default settings for Firefox (including bookmarks) and these three sites still work and nothing else. Additionally, these three sites load in Internet explorer, so the problem isn't specific to Firefox. 3. I don't believe it's a problem with my router/internet connection because I have another computer on the same connection that's working fine (I'm typing this message on the other computer). 4. I successfully pinged other websites using Command.5. I suspect it MIGHT be malware/virus because I have no anti-virus/anti-malware software on the computer that's having problems.
I'm trying to set up a website filter on my DIR-601. I created a policy for 2 MAC addresses, with a schedule from 10AM-6PM, selected "Block some websites", and disabled logging. Under website filter, I added some entries, and selected "DENY computers access to ONLY these sites". When the policy is enabled, and I try to access one of the blocked websites, it gets blocked correctly ("The URL access was denied by administrator.") However, for all other websites, I get "server unexpectedly dropped the connection" errors, eg "Safari can�t open the page [URL] because the server unexpectedly dropped the connection. This sometimes occurs when the server is busy. Wait for a few minutes, and then try again." or in Chrome "No data received. Unable to load the webpage because the server sent no data." This happens with ALL non-blocked websites. I'm using hardware version A1, firmware version 1.01NA.
NVIDIA is blocking my internet connecting on only one of my computers and it has become somewhat of an urgent situation. I need to know how to get rid of it immediately. I have no idea what NVIDIA is. I was using my computer and going on the internet without a problem and 3 hours later this issue came about.
Every time I turn on my PC I find I have lost internet access. I can fix this by going to Network Connections, disabling the connection, re-enabling the connection.But why does this happen? I notice the the following:1. When I look at the Network Connection it shows "Local Area Connection, Network 3, Unidentified network, Realtek PCIe....."2. When I re-enable the network AVG tells me the Firewall settings have changed - Directly Connected to Network has been set to Unidentified..... etc
I'm having problems connecting to certain sites on the internet through one computer. I can connect ok on other computers going through the same home network. On the one computer that is having problems I can connect to the site but then when I click on a link I get unable to connect then I can reload the page and some times it connects to the page. So as I am browsing through the site almost every time I click on a link I get unable to connect and have to keep reloading the page.
I have today the issue that I am unable to load certain websites, I can enter but whenever I click on continue to navigate in that same site for example FACEBOOK, I see the operation just loads and dont go anywhere, after that remains in same condition unless I cancel or close the browser.I checked the firewall, and also the antivirus, but nothing seems wrong, I can get in into HOTMAIL, GOOGLE, but again certain sites if I search something on GOOGLE, get frozen again .
I just picked up the E4200 to replace a router, I can remote desktop into a computer that is physically connected to this router, but cannot remote desktop into other computers on the network that are connected via another switch.
I have a server subnet that for the most part needs to be able to access the internet for patches, updates, etc. My SysAd wants 2 of the servers to not have access. The server subnet is attached to a 3750 and connects to an ASA to reach the outside world. Would it be better to setup an ACL on the SVI of the server subnet or on the outbound direction of the outside interface on the ASA.